shu/sac-route-portal-gpx-fx
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add wapoints to gpx file

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This commit is contained in:
Sebastian Hugentobler 2021-06-16 10:29:25 +02:00
parent 3c9e6a2865
commit 9c78a2e931
Signed by: shu
GPG Key ID: BB32CF3CA052C2F0
1 changed files with 33 additions and 6 deletions
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37
background.js
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@ -13,9 +13,9 @@ let gpxTrack = null;
* (https://www.swisstopo.admin.ch/en/knowledge-facts/surveying-geodesy/reference-systems/map-projections.html).
*
* @param {*} point Array of Swiss projection coordinates, position 0 is E and 1 is N.
* @returns Track point xml node for gpx.
* @returns Calculated lat and lon.
*/
function toTrackPoint(point) {
function toWGS84(point) {
// convert LV95 into the civilian system
let y_aux = (point[0] - 2600000)/1000000;
let x_aux = (point[1] - 1200000)/1000000;
@ -28,7 +28,7 @@ function toTrackPoint(point) {
0.0447 * Math.pow(y_aux, 2) * x_aux -
0.0140 * Math.pow(x_aux, 3);
let lng = 2.6779094 +
let lon = 2.6779094 +
4.728982 * y_aux +
0.791484 * y_aux * x_aux +
0.1306 * y_aux * Math.pow(x_aux, 2) -
@ -36,9 +36,34 @@ function toTrackPoint(point) {
// unit 10000" to 1" and seconds to degrees (dec)
lat = lat * 100 / 36;
lng = lng * 100 / 36;
lon = lon * 100 / 36;
return `<trkpt lat="${lat}" lon="${lng}"/>`;
return {lat: lat, lon: lon};
}
/**
* Get the gpx trackpoint representation of a Swiss projection coordinate point.
*
* @param {*} point Array of Swiss projection coordinates, position 0 is E and 1 is N.
* @returns Track point xml node for gpx.
*/
function toTrackPoint(point) {
let wgs84Point = toWGS84(point);
return `<trkpt lat="${wgs84Point.lat}" lon="${wgs84Point.lon}"/>`;
}
/**
* Get the gpx waypoint representation of a route portal point.
*
* @returns Way point xml node for gpx.
*/
function toWayPoint(point) {
let wgs84Point = toWGS84(point.geom.coordinates);
return `
<wpt lat="${wgs84Point.lat}" lon="${wgs84Point.lon}">
<ele>${point.altitude}</ele>
<name>${point.display_name}</name>
</wpt>`;
}
/**
@ -69,6 +94,8 @@ function toGpx(geoJson) {
xsi:schemaLocation="http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd"
version="1.0"
creator="SAC-Tourenportal GPX Downloader">
${toWayPoint(geoJson.departure_point)}
${toWayPoint(geoJson.destination_poi)}
<trk>
<name>Track ${routeTitle}</name>
<trkseg>